FAIR VALUE MEASUREMENTS

12 Months Ended

Dec. 31, 2019

FAIR VALUE MEASUREMENTS

The Corporation's financial instruments are classified as Level 2 measurements. For assets and liabilities classified as Level 2 measurements, where the security is frequently traded in less active markets, fair value is based on the closing price at the end of the period; where the security is less frequently traded, fair value is based on the price a dealer would pay for the security or similar securities, adjusted for any terms specific to that asset or liability, or by using observable market data points of similar, more liquid securities to imply the price. Market inputs are obtained from well-established and recognized vendors of market data and subjected to tolerance/quality checks.

Assets that are measured using significant other observable inputs are primarily valued by reference to quoted prices of similar assets in active markets, adjusted for any terms specific to that asset. For all other assets for which observable inputs are used, fair value is derived through the use of fair value models, such as a discounted cash flow model or other standard pricing models. There were no transfers between Levels 1 and 2 in the years ended December 31, 2019 and 2018.

The following table summarizes the fair value of the Corporation's financial instruments at December 31, 2019 and 2018:



Fair Value of Financial Instruments	2019											2018
In millions	Cost			Gain		Loss			Fair Value			Cost			Gain		Loss			Fair Value
Cash equivalents ¹	$	10		$	—	$	—		$	10		$	10		$	—	$	—		$	10
Long-term debt including debt due within one year	$	(474	)	$	—	$	(115	)	$	(589	)	$	(474	)	$	—	$	(67	)	$	(541	)

1. Money market fund is included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value.

Cost approximates fair value for all other financial instruments.

Fair Value Measurements on a Nonrecurring Basis

In 2019, the Corporation recognized an impairment charge of $75 million resulting from the planned divestiture of its acetone derivatives product line to ALTIVIA Ketones & Additives, LLC. The transaction included the Corporation's acetone derivatives related inventory and production assets located in Institute, West Virginia, in addition to the site infrastructure, land and utilities and certain railcars previously owned by TDCC. The assets, classified as Level 3 measurements and valued using unobservable inputs, were written down to zero in 2019, except for inventory and railcars. The impairment charge was included in "Restructuring and asset related charges - net" in the consolidated statements of income. See Note 6 for additional information.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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